/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 14:15:50,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 14:15:50,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 14:15:50,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 14:15:50,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 14:15:50,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 14:15:50,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 14:15:50,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 14:15:50,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 14:15:50,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 14:15:50,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 14:15:50,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 14:15:50,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 14:15:50,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 14:15:50,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 14:15:50,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 14:15:50,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 14:15:50,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 14:15:50,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 14:15:50,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 14:15:50,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 14:15:50,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 14:15:50,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 14:15:50,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 14:15:50,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 14:15:50,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 14:15:50,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 14:15:50,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 14:15:50,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 14:15:50,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 14:15:50,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 14:15:50,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 14:15:50,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 14:15:50,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 14:15:50,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 14:15:50,804 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 14:15:50,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 14:15:50,805 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 14:15:50,805 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 14:15:50,806 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 14:15:50,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 14:15:50,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-09-17 14:15:50,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 14:15:50,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 14:15:50,862 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 14:15:50,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 14:15:50,863 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 14:15:50,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 14:15:50,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 14:15:50,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 14:15:50,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 14:15:50,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 14:15:50,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 14:15:50,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 14:15:50,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 14:15:50,866 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 14:15:50,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 14:15:50,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 14:15:50,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 14:15:50,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 14:15:50,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 14:15:50,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 14:15:50,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 14:15:50,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:15:50,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 14:15:50,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-17 14:15:50,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 14:15:50,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 14:15:50,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 14:15:50,869 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-17 14:15:50,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 14:15:51,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 14:15:51,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 14:15:51,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 14:15:51,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 14:15:51,331 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 14:15:51,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-09-17 14:15:51,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393eb248c/f6b6bfac474c438ebf79f4c4fed01cd5/FLAGb819939b4 [2020-09-17 14:15:52,055 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 14:15:52,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2020-09-17 14:15:52,080 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393eb248c/f6b6bfac474c438ebf79f4c4fed01cd5/FLAGb819939b4 [2020-09-17 14:15:52,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393eb248c/f6b6bfac474c438ebf79f4c4fed01cd5 [2020-09-17 14:15:52,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 14:15:52,267 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 14:15:52,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 14:15:52,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 14:15:52,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 14:15:52,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:15:52" (1/1) ... [2020-09-17 14:15:52,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772bfb8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:52, skipping insertion in model container [2020-09-17 14:15:52,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 02:15:52" (1/1) ... [2020-09-17 14:15:52,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 14:15:52,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 14:15:53,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:15:53,253 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 14:15:53,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 14:15:53,752 INFO L208 MainTranslator]: Completed translation [2020-09-17 14:15:53,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53 WrapperNode [2020-09-17 14:15:53,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 14:15:53,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 14:15:53,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 14:15:53,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 14:15:53,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 14:15:53,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 14:15:53,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 14:15:53,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 14:15:53,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... [2020-09-17 14:15:53,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 14:15:53,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 14:15:53,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 14:15:53,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 14:15:53,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 14:15:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 14:15:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-17 14:15:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-09-17 14:15:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-17 14:15:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 14:15:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 14:15:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-09-17 14:15:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-09-17 14:15:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 14:15:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 14:15:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-17 14:15:53,992 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 14:15:54,670 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 14:15:54,671 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-09-17 14:15:54,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:15:54 BoogieIcfgContainer [2020-09-17 14:15:54,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 14:15:54,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 14:15:54,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 14:15:54,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 14:15:54,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 02:15:52" (1/3) ... [2020-09-17 14:15:54,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680c8b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:15:54, skipping insertion in model container [2020-09-17 14:15:54,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 02:15:53" (2/3) ... [2020-09-17 14:15:54,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680c8b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 02:15:54, skipping insertion in model container [2020-09-17 14:15:54,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 02:15:54" (3/3) ... [2020-09-17 14:15:54,691 INFO L109 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2020-09-17 14:15:54,703 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 14:15:54,704 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-17 14:15:54,716 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-09-17 14:15:54,717 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 14:15:54,771 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,772 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,772 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,773 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,774 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,775 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,776 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,777 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,777 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,777 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,777 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,778 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,779 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,779 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,780 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,780 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,781 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,782 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,782 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,782 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,783 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,785 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,786 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,786 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,786 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,786 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,787 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,788 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,790 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,790 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,790 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,791 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,792 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,792 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,793 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,793 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,794 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,798 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,800 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,800 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,800 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,801 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,801 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,801 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,801 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,802 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,802 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,812 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,812 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,813 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,813 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,814 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,816 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,816 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,816 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,816 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,817 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 14:15:54,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-09-17 14:15:54,883 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 14:15:54,884 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 14:15:54,884 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-17 14:15:54,884 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 14:15:54,884 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 14:15:54,885 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 14:15:54,885 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 14:15:54,885 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 14:15:54,906 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 155 transitions, 332 flow [2020-09-17 14:15:54,909 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 332 flow [2020-09-17 14:15:55,002 INFO L129 PetriNetUnfolder]: 11/193 cut-off events. [2020-09-17 14:15:55,003 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:15:55,013 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 193 events. 11/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 378 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-09-17 14:15:55,022 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 151 places, 155 transitions, 332 flow [2020-09-17 14:15:55,114 INFO L129 PetriNetUnfolder]: 11/193 cut-off events. [2020-09-17 14:15:55,115 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-09-17 14:15:55,116 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 193 events. 11/193 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 378 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 107. Up to 4 conditions per place. [2020-09-17 14:15:55,119 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2884 [2020-09-17 14:15:55,120 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-17 14:15:57,402 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,426 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:57,434 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,449 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:15:57,451 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 14:15:57,451 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:99, output treesize:71 [2020-09-17 14:15:59,436 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-09-17 14:15:59,597 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-09-17 14:16:00,207 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125 [2020-09-17 14:16:00,233 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:00,466 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-09-17 14:16:00,467 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:16:00,480 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:00,717 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-09-17 14:16:00,718 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:16:00,719 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:00,720 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:250, output treesize:222 [2020-09-17 14:16:00,935 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2020-09-17 14:16:01,921 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128 [2020-09-17 14:16:01,950 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:02,366 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-09-17 14:16:02,367 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:16:02,385 INFO L545 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:02,774 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-09-17 14:16:02,774 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-09-17 14:16:02,776 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2020-09-17 14:16:02,776 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:267, output treesize:279 [2020-09-17 14:16:03,177 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-09-17 14:16:03,409 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2020-09-17 14:16:03,652 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-09-17 14:16:03,666 INFO L206 etLargeBlockEncoding]: Checked pairs total: 5170 [2020-09-17 14:16:03,666 INFO L214 etLargeBlockEncoding]: Total number of compositions: 162 [2020-09-17 14:16:03,671 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 40 transitions, 102 flow [2020-09-17 14:16:03,701 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 425 states. [2020-09-17 14:16:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states. [2020-09-17 14:16:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-09-17 14:16:03,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:03,712 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-09-17 14:16:03,712 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:03,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:03,720 INFO L82 PathProgramCache]: Analyzing trace with hash 557, now seen corresponding path program 1 times [2020-09-17 14:16:03,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:03,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318148273] [2020-09-17 14:16:03,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:04,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318148273] [2020-09-17 14:16:04,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:04,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-09-17 14:16:04,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177122391] [2020-09-17 14:16:04,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 14:16:04,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:04,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 14:16:04,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 14:16:04,030 INFO L87 Difference]: Start difference. First operand 425 states. Second operand 2 states. [2020-09-17 14:16:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:04,068 INFO L93 Difference]: Finished difference Result 423 states and 1029 transitions. [2020-09-17 14:16:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 14:16:04,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-09-17 14:16:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:04,088 INFO L225 Difference]: With dead ends: 423 [2020-09-17 14:16:04,089 INFO L226 Difference]: Without dead ends: 385 [2020-09-17 14:16:04,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 14:16:04,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-17 14:16:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2020-09-17 14:16:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-17 14:16:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 931 transitions. [2020-09-17 14:16:04,172 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 931 transitions. Word has length 1 [2020-09-17 14:16:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:04,172 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 931 transitions. [2020-09-17 14:16:04,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 14:16:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 931 transitions. [2020-09-17 14:16:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-17 14:16:04,173 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:04,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-17 14:16:04,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 14:16:04,174 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:04,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:04,174 INFO L82 PathProgramCache]: Analyzing trace with hash 17154767, now seen corresponding path program 1 times [2020-09-17 14:16:04,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:04,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722510493] [2020-09-17 14:16:04,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:04,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722510493] [2020-09-17 14:16:04,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:04,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 14:16:04,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563055115] [2020-09-17 14:16:04,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:16:04,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:04,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:16:04,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:04,444 INFO L87 Difference]: Start difference. First operand 385 states and 931 transitions. Second operand 3 states. [2020-09-17 14:16:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:04,537 INFO L93 Difference]: Finished difference Result 540 states and 1306 transitions. [2020-09-17 14:16:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:16:04,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-17 14:16:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:04,544 INFO L225 Difference]: With dead ends: 540 [2020-09-17 14:16:04,545 INFO L226 Difference]: Without dead ends: 540 [2020-09-17 14:16:04,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:04,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-09-17 14:16:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 444. [2020-09-17 14:16:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-17 14:16:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1086 transitions. [2020-09-17 14:16:04,581 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1086 transitions. Word has length 4 [2020-09-17 14:16:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:04,582 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 1086 transitions. [2020-09-17 14:16:04,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:16:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1086 transitions. [2020-09-17 14:16:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-17 14:16:04,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:04,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-17 14:16:04,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 14:16:04,583 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:04,584 INFO L82 PathProgramCache]: Analyzing trace with hash -694138238, now seen corresponding path program 1 times [2020-09-17 14:16:04,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:04,584 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26550085] [2020-09-17 14:16:04,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:04,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:04,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26550085] [2020-09-17 14:16:04,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:04,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 14:16:04,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593840843] [2020-09-17 14:16:04,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 14:16:04,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:04,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 14:16:04,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 14:16:04,727 INFO L87 Difference]: Start difference. First operand 444 states and 1086 transitions. Second operand 4 states. [2020-09-17 14:16:04,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:04,859 INFO L93 Difference]: Finished difference Result 599 states and 1429 transitions. [2020-09-17 14:16:04,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 14:16:04,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-09-17 14:16:04,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:04,864 INFO L225 Difference]: With dead ends: 599 [2020-09-17 14:16:04,864 INFO L226 Difference]: Without dead ends: 514 [2020-09-17 14:16:04,864 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-17 14:16:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-09-17 14:16:04,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 482. [2020-09-17 14:16:04,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-17 14:16:04,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1195 transitions. [2020-09-17 14:16:04,884 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1195 transitions. Word has length 6 [2020-09-17 14:16:04,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:04,884 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 1195 transitions. [2020-09-17 14:16:04,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 14:16:04,885 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1195 transitions. [2020-09-17 14:16:04,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 14:16:04,887 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:04,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:04,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 14:16:04,887 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:04,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:04,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1786983460, now seen corresponding path program 1 times [2020-09-17 14:16:04,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:04,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938027149] [2020-09-17 14:16:04,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:05,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:05,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938027149] [2020-09-17 14:16:05,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:05,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 14:16:05,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823502148] [2020-09-17 14:16:05,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 14:16:05,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:05,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 14:16:05,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:05,007 INFO L87 Difference]: Start difference. First operand 482 states and 1195 transitions. Second operand 3 states. [2020-09-17 14:16:05,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:05,023 INFO L93 Difference]: Finished difference Result 162 states and 347 transitions. [2020-09-17 14:16:05,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 14:16:05,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-17 14:16:05,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:05,026 INFO L225 Difference]: With dead ends: 162 [2020-09-17 14:16:05,026 INFO L226 Difference]: Without dead ends: 162 [2020-09-17 14:16:05,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 14:16:05,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-09-17 14:16:05,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-09-17 14:16:05,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-17 14:16:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 347 transitions. [2020-09-17 14:16:05,032 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 347 transitions. Word has length 10 [2020-09-17 14:16:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:05,032 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 347 transitions. [2020-09-17 14:16:05,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 14:16:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 347 transitions. [2020-09-17 14:16:05,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:05,034 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:05,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:05,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 14:16:05,035 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:05,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:05,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1425167552, now seen corresponding path program 1 times [2020-09-17 14:16:05,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:05,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837368231] [2020-09-17 14:16:05,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:05,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837368231] [2020-09-17 14:16:05,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:05,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-17 14:16:05,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500681909] [2020-09-17 14:16:05,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 14:16:05,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:05,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 14:16:05,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 14:16:05,274 INFO L87 Difference]: Start difference. First operand 162 states and 347 transitions. Second operand 5 states. [2020-09-17 14:16:05,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:05,362 INFO L93 Difference]: Finished difference Result 114 states and 195 transitions. [2020-09-17 14:16:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 14:16:05,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-09-17 14:16:05,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:05,364 INFO L225 Difference]: With dead ends: 114 [2020-09-17 14:16:05,364 INFO L226 Difference]: Without dead ends: 114 [2020-09-17 14:16:05,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 14:16:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-17 14:16:05,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-17 14:16:05,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-17 14:16:05,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 195 transitions. [2020-09-17 14:16:05,370 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 195 transitions. Word has length 22 [2020-09-17 14:16:05,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:05,370 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 195 transitions. [2020-09-17 14:16:05,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 14:16:05,370 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 195 transitions. [2020-09-17 14:16:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:05,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:05,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:05,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 14:16:05,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:05,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:05,373 INFO L82 PathProgramCache]: Analyzing trace with hash 864306392, now seen corresponding path program 1 times [2020-09-17 14:16:05,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:05,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254461610] [2020-09-17 14:16:05,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:05,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254461610] [2020-09-17 14:16:05,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:05,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:05,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712952368] [2020-09-17 14:16:05,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-17 14:16:05,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:05,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-17 14:16:05,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-17 14:16:05,683 INFO L87 Difference]: Start difference. First operand 114 states and 195 transitions. Second operand 8 states. [2020-09-17 14:16:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:06,014 INFO L93 Difference]: Finished difference Result 132 states and 222 transitions. [2020-09-17 14:16:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:16:06,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-09-17 14:16:06,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:06,019 INFO L225 Difference]: With dead ends: 132 [2020-09-17 14:16:06,019 INFO L226 Difference]: Without dead ends: 132 [2020-09-17 14:16:06,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-09-17 14:16:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-09-17 14:16:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 120. [2020-09-17 14:16:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-17 14:16:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 200 transitions. [2020-09-17 14:16:06,027 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 200 transitions. Word has length 22 [2020-09-17 14:16:06,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:06,027 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 200 transitions. [2020-09-17 14:16:06,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-17 14:16:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 200 transitions. [2020-09-17 14:16:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:06,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:06,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:06,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 14:16:06,032 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:06,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:06,032 INFO L82 PathProgramCache]: Analyzing trace with hash -412491042, now seen corresponding path program 2 times [2020-09-17 14:16:06,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:06,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691215854] [2020-09-17 14:16:06,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:06,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:06,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691215854] [2020-09-17 14:16:06,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:06,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:06,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946904832] [2020-09-17 14:16:06,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:16:06,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:06,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:16:06,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:16:06,657 INFO L87 Difference]: Start difference. First operand 120 states and 200 transitions. Second operand 9 states. [2020-09-17 14:16:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:07,035 INFO L93 Difference]: Finished difference Result 160 states and 256 transitions. [2020-09-17 14:16:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:16:07,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:16:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:07,038 INFO L225 Difference]: With dead ends: 160 [2020-09-17 14:16:07,038 INFO L226 Difference]: Without dead ends: 160 [2020-09-17 14:16:07,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-09-17 14:16:07,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 130. [2020-09-17 14:16:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-17 14:16:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 210 transitions. [2020-09-17 14:16:07,044 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 210 transitions. Word has length 22 [2020-09-17 14:16:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:07,044 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 210 transitions. [2020-09-17 14:16:07,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:16:07,045 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 210 transitions. [2020-09-17 14:16:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:07,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:07,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:07,046 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 14:16:07,046 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:07,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:07,046 INFO L82 PathProgramCache]: Analyzing trace with hash -412491025, now seen corresponding path program 1 times [2020-09-17 14:16:07,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:07,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214859684] [2020-09-17 14:16:07,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:08,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214859684] [2020-09-17 14:16:08,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:08,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:08,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598941078] [2020-09-17 14:16:08,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:08,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:08,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:08,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:08,163 INFO L87 Difference]: Start difference. First operand 130 states and 210 transitions. Second operand 14 states. [2020-09-17 14:16:09,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:09,179 INFO L93 Difference]: Finished difference Result 146 states and 225 transitions. [2020-09-17 14:16:09,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:09,180 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:09,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:09,181 INFO L225 Difference]: With dead ends: 146 [2020-09-17 14:16:09,181 INFO L226 Difference]: Without dead ends: 131 [2020-09-17 14:16:09,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:09,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-17 14:16:09,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-09-17 14:16:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-17 14:16:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 208 transitions. [2020-09-17 14:16:09,187 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 208 transitions. Word has length 22 [2020-09-17 14:16:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:09,187 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 208 transitions. [2020-09-17 14:16:09,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 208 transitions. [2020-09-17 14:16:09,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:09,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:09,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:09,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 14:16:09,189 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash -524474255, now seen corresponding path program 2 times [2020-09-17 14:16:09,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:09,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119232076] [2020-09-17 14:16:09,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:10,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119232076] [2020-09-17 14:16:10,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:10,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:10,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855352150] [2020-09-17 14:16:10,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:10,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:10,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:10,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:10,304 INFO L87 Difference]: Start difference. First operand 130 states and 208 transitions. Second operand 14 states. [2020-09-17 14:16:11,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:11,387 INFO L93 Difference]: Finished difference Result 144 states and 221 transitions. [2020-09-17 14:16:11,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-17 14:16:11,388 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:11,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:11,389 INFO L225 Difference]: With dead ends: 144 [2020-09-17 14:16:11,390 INFO L226 Difference]: Without dead ends: 131 [2020-09-17 14:16:11,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:16:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-09-17 14:16:11,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2020-09-17 14:16:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-17 14:16:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 207 transitions. [2020-09-17 14:16:11,395 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 207 transitions. Word has length 22 [2020-09-17 14:16:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:11,396 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 207 transitions. [2020-09-17 14:16:11,396 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:11,396 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 207 transitions. [2020-09-17 14:16:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:11,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:11,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:11,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 14:16:11,397 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:11,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1681973066, now seen corresponding path program 2 times [2020-09-17 14:16:11,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:11,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310730178] [2020-09-17 14:16:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:11,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310730178] [2020-09-17 14:16:11,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:11,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-17 14:16:11,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483077069] [2020-09-17 14:16:11,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-17 14:16:11,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:11,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-17 14:16:11,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-17 14:16:11,734 INFO L87 Difference]: Start difference. First operand 130 states and 207 transitions. Second operand 11 states. [2020-09-17 14:16:12,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:12,256 INFO L93 Difference]: Finished difference Result 178 states and 289 transitions. [2020-09-17 14:16:12,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:12,256 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-09-17 14:16:12,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:12,257 INFO L225 Difference]: With dead ends: 178 [2020-09-17 14:16:12,258 INFO L226 Difference]: Without dead ends: 178 [2020-09-17 14:16:12,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=220, Unknown=0, NotChecked=0, Total=342 [2020-09-17 14:16:12,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-17 14:16:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 138. [2020-09-17 14:16:12,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-17 14:16:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 224 transitions. [2020-09-17 14:16:12,262 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 224 transitions. Word has length 22 [2020-09-17 14:16:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:12,263 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 224 transitions. [2020-09-17 14:16:12,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-17 14:16:12,263 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 224 transitions. [2020-09-17 14:16:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:12,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:12,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:12,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-17 14:16:12,264 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash 671772802, now seen corresponding path program 3 times [2020-09-17 14:16:12,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:12,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494063107] [2020-09-17 14:16:12,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:12,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494063107] [2020-09-17 14:16:12,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:12,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:12,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791329286] [2020-09-17 14:16:12,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:16:12,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:12,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:16:12,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:16:12,750 INFO L87 Difference]: Start difference. First operand 138 states and 224 transitions. Second operand 9 states. [2020-09-17 14:16:13,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:13,038 INFO L93 Difference]: Finished difference Result 171 states and 268 transitions. [2020-09-17 14:16:13,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:16:13,038 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:16:13,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:13,040 INFO L225 Difference]: With dead ends: 171 [2020-09-17 14:16:13,040 INFO L226 Difference]: Without dead ends: 171 [2020-09-17 14:16:13,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-09-17 14:16:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-09-17 14:16:13,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 140. [2020-09-17 14:16:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-17 14:16:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-09-17 14:16:13,045 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-09-17 14:16:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:13,046 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-09-17 14:16:13,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:16:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-09-17 14:16:13,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:13,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:13,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:13,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-17 14:16:13,047 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:13,048 INFO L82 PathProgramCache]: Analyzing trace with hash 671772819, now seen corresponding path program 3 times [2020-09-17 14:16:13,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:13,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161627267] [2020-09-17 14:16:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:14,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:14,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161627267] [2020-09-17 14:16:14,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:14,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:14,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85306196] [2020-09-17 14:16:14,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:14,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:14,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:14,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:14,068 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-09-17 14:16:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:15,081 INFO L93 Difference]: Finished difference Result 150 states and 235 transitions. [2020-09-17 14:16:15,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:15,081 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:15,083 INFO L225 Difference]: With dead ends: 150 [2020-09-17 14:16:15,083 INFO L226 Difference]: Without dead ends: 142 [2020-09-17 14:16:15,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-17 14:16:15,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 140. [2020-09-17 14:16:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-17 14:16:15,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-09-17 14:16:15,089 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-09-17 14:16:15,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:15,089 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-09-17 14:16:15,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:15,089 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-09-17 14:16:15,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:15,090 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:15,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:15,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-17 14:16:15,091 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:15,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:15,091 INFO L82 PathProgramCache]: Analyzing trace with hash -481747075, now seen corresponding path program 4 times [2020-09-17 14:16:15,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:15,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752930020] [2020-09-17 14:16:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:15,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752930020] [2020-09-17 14:16:15,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:15,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:15,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800726805] [2020-09-17 14:16:15,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:15,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:15,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:15,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:15,967 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 14 states. [2020-09-17 14:16:16,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:16,879 INFO L93 Difference]: Finished difference Result 149 states and 233 transitions. [2020-09-17 14:16:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:16,880 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:16,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:16,881 INFO L225 Difference]: With dead ends: 149 [2020-09-17 14:16:16,881 INFO L226 Difference]: Without dead ends: 136 [2020-09-17 14:16:16,882 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:16,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-17 14:16:16,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2020-09-17 14:16:16,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-09-17 14:16:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 214 transitions. [2020-09-17 14:16:16,886 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 214 transitions. Word has length 22 [2020-09-17 14:16:16,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:16,886 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 214 transitions. [2020-09-17 14:16:16,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 214 transitions. [2020-09-17 14:16:16,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:16,887 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:16,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:16,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-17 14:16:16,888 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:16,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:16,888 INFO L82 PathProgramCache]: Analyzing trace with hash 186432761, now seen corresponding path program 5 times [2020-09-17 14:16:16,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:16,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513919445] [2020-09-17 14:16:16,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:17,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513919445] [2020-09-17 14:16:17,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:17,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:17,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852519153] [2020-09-17 14:16:17,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:17,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:17,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:17,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:17,860 INFO L87 Difference]: Start difference. First operand 134 states and 214 transitions. Second operand 14 states. [2020-09-17 14:16:18,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:18,817 INFO L93 Difference]: Finished difference Result 150 states and 228 transitions. [2020-09-17 14:16:18,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:18,817 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:18,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:18,819 INFO L225 Difference]: With dead ends: 150 [2020-09-17 14:16:18,819 INFO L226 Difference]: Without dead ends: 139 [2020-09-17 14:16:18,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-09-17 14:16:18,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2020-09-17 14:16:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-09-17 14:16:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 216 transitions. [2020-09-17 14:16:18,828 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 216 transitions. Word has length 22 [2020-09-17 14:16:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:18,829 INFO L479 AbstractCegarLoop]: Abstraction has 138 states and 216 transitions. [2020-09-17 14:16:18,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:18,829 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 216 transitions. [2020-09-17 14:16:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:18,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:18,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:18,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-17 14:16:18,832 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:18,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 331278926, now seen corresponding path program 4 times [2020-09-17 14:16:18,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:18,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095217170] [2020-09-17 14:16:18,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:19,335 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095217170] [2020-09-17 14:16:19,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:19,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:19,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185793473] [2020-09-17 14:16:19,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:16:19,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:19,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:16:19,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:16:19,339 INFO L87 Difference]: Start difference. First operand 138 states and 216 transitions. Second operand 9 states. [2020-09-17 14:16:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:19,742 INFO L93 Difference]: Finished difference Result 170 states and 261 transitions. [2020-09-17 14:16:19,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-17 14:16:19,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:16:19,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:19,744 INFO L225 Difference]: With dead ends: 170 [2020-09-17 14:16:19,744 INFO L226 Difference]: Without dead ends: 158 [2020-09-17 14:16:19,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-17 14:16:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-09-17 14:16:19,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-17 14:16:19,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 202 transitions. [2020-09-17 14:16:19,749 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 202 transitions. Word has length 22 [2020-09-17 14:16:19,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:19,750 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 202 transitions. [2020-09-17 14:16:19,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:16:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 202 transitions. [2020-09-17 14:16:19,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:19,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:19,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:19,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-17 14:16:19,751 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:19,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1728779239, now seen corresponding path program 6 times [2020-09-17 14:16:19,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:19,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540410487] [2020-09-17 14:16:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:20,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540410487] [2020-09-17 14:16:20,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:20,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:20,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521686964] [2020-09-17 14:16:20,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:20,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:20,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:20,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:20,692 INFO L87 Difference]: Start difference. First operand 126 states and 202 transitions. Second operand 14 states. [2020-09-17 14:16:21,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:21,611 INFO L93 Difference]: Finished difference Result 138 states and 213 transitions. [2020-09-17 14:16:21,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:21,612 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:21,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:21,613 INFO L225 Difference]: With dead ends: 138 [2020-09-17 14:16:21,614 INFO L226 Difference]: Without dead ends: 116 [2020-09-17 14:16:21,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:16:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-17 14:16:21,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-09-17 14:16:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-09-17 14:16:21,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 185 transitions. [2020-09-17 14:16:21,627 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 185 transitions. Word has length 22 [2020-09-17 14:16:21,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:21,627 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 185 transitions. [2020-09-17 14:16:21,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:21,627 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 185 transitions. [2020-09-17 14:16:21,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:21,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:21,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:21,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-17 14:16:21,628 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:21,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:21,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688272, now seen corresponding path program 5 times [2020-09-17 14:16:21,629 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:21,629 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577959086] [2020-09-17 14:16:21,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:22,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577959086] [2020-09-17 14:16:22,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:22,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:22,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324795994] [2020-09-17 14:16:22,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:16:22,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:22,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:16:22,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:16:22,218 INFO L87 Difference]: Start difference. First operand 116 states and 185 transitions. Second operand 9 states. [2020-09-17 14:16:22,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:22,589 INFO L93 Difference]: Finished difference Result 146 states and 232 transitions. [2020-09-17 14:16:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-17 14:16:22,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:16:22,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:22,591 INFO L225 Difference]: With dead ends: 146 [2020-09-17 14:16:22,591 INFO L226 Difference]: Without dead ends: 146 [2020-09-17 14:16:22,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-17 14:16:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 140. [2020-09-17 14:16:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-17 14:16:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 226 transitions. [2020-09-17 14:16:22,596 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 226 transitions. Word has length 22 [2020-09-17 14:16:22,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:22,597 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 226 transitions. [2020-09-17 14:16:22,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:16:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 226 transitions. [2020-09-17 14:16:22,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:22,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:22,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:22,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-17 14:16:22,598 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:22,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:22,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1730688289, now seen corresponding path program 7 times [2020-09-17 14:16:22,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:22,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107437264] [2020-09-17 14:16:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:23,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107437264] [2020-09-17 14:16:23,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:23,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:23,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272459231] [2020-09-17 14:16:23,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:23,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:23,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:23,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:23,831 INFO L87 Difference]: Start difference. First operand 140 states and 226 transitions. Second operand 14 states. [2020-09-17 14:16:24,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:24,853 INFO L93 Difference]: Finished difference Result 171 states and 271 transitions. [2020-09-17 14:16:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:24,854 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:24,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:24,855 INFO L225 Difference]: With dead ends: 171 [2020-09-17 14:16:24,855 INFO L226 Difference]: Without dead ends: 143 [2020-09-17 14:16:24,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:24,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-09-17 14:16:24,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 140. [2020-09-17 14:16:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-09-17 14:16:24,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 225 transitions. [2020-09-17 14:16:24,861 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 225 transitions. Word has length 22 [2020-09-17 14:16:24,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:24,861 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 225 transitions. [2020-09-17 14:16:24,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:24,862 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 225 transitions. [2020-09-17 14:16:24,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:24,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:24,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:24,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-17 14:16:24,863 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:24,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655162, now seen corresponding path program 6 times [2020-09-17 14:16:24,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:24,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319203257] [2020-09-17 14:16:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:25,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319203257] [2020-09-17 14:16:25,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:25,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-17 14:16:25,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873731070] [2020-09-17 14:16:25,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-17 14:16:25,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:25,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-17 14:16:25,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-17 14:16:25,361 INFO L87 Difference]: Start difference. First operand 140 states and 225 transitions. Second operand 9 states. [2020-09-17 14:16:25,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:25,682 INFO L93 Difference]: Finished difference Result 151 states and 238 transitions. [2020-09-17 14:16:25,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-17 14:16:25,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-09-17 14:16:25,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:25,684 INFO L225 Difference]: With dead ends: 151 [2020-09-17 14:16:25,684 INFO L226 Difference]: Without dead ends: 151 [2020-09-17 14:16:25,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-17 14:16:25,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 109. [2020-09-17 14:16:25,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 14:16:25,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2020-09-17 14:16:25,688 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 22 [2020-09-17 14:16:25,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:25,689 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2020-09-17 14:16:25,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-17 14:16:25,689 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2020-09-17 14:16:25,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:25,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:25,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:25,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-17 14:16:25,690 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:25,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:25,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1523655179, now seen corresponding path program 8 times [2020-09-17 14:16:25,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:25,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677406686] [2020-09-17 14:16:25,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:26,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677406686] [2020-09-17 14:16:26,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:26,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:26,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498311302] [2020-09-17 14:16:26,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:26,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:26,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:26,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:26,663 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand 14 states. [2020-09-17 14:16:27,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:27,632 INFO L93 Difference]: Finished difference Result 147 states and 237 transitions. [2020-09-17 14:16:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:27,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:27,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:27,634 INFO L225 Difference]: With dead ends: 147 [2020-09-17 14:16:27,634 INFO L226 Difference]: Without dead ends: 125 [2020-09-17 14:16:27,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:27,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-17 14:16:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 109. [2020-09-17 14:16:27,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 14:16:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 175 transitions. [2020-09-17 14:16:27,639 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 175 transitions. Word has length 22 [2020-09-17 14:16:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:27,639 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 175 transitions. [2020-09-17 14:16:27,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 175 transitions. [2020-09-17 14:16:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:27,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:27,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:27,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-17 14:16:27,640 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1986983371, now seen corresponding path program 9 times [2020-09-17 14:16:27,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:27,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276584021] [2020-09-17 14:16:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:28,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276584021] [2020-09-17 14:16:28,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:28,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:28,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711644234] [2020-09-17 14:16:28,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:28,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:28,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:28,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:28,598 INFO L87 Difference]: Start difference. First operand 109 states and 175 transitions. Second operand 14 states. [2020-09-17 14:16:29,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:29,716 INFO L93 Difference]: Finished difference Result 148 states and 232 transitions. [2020-09-17 14:16:29,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-17 14:16:29,716 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:29,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:29,718 INFO L225 Difference]: With dead ends: 148 [2020-09-17 14:16:29,718 INFO L226 Difference]: Without dead ends: 134 [2020-09-17 14:16:29,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:16:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-09-17 14:16:29,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 109. [2020-09-17 14:16:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 14:16:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 173 transitions. [2020-09-17 14:16:29,722 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 173 transitions. Word has length 22 [2020-09-17 14:16:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:29,722 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 173 transitions. [2020-09-17 14:16:29,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 173 transitions. [2020-09-17 14:16:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:29,723 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:29,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:29,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-17 14:16:29,724 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:29,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:29,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1039623051, now seen corresponding path program 10 times [2020-09-17 14:16:29,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:29,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204256008] [2020-09-17 14:16:29,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:30,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204256008] [2020-09-17 14:16:30,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:30,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:30,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758702855] [2020-09-17 14:16:30,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:30,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:30,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:30,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:30,616 INFO L87 Difference]: Start difference. First operand 109 states and 173 transitions. Second operand 14 states. [2020-09-17 14:16:31,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:31,578 INFO L93 Difference]: Finished difference Result 140 states and 216 transitions. [2020-09-17 14:16:31,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:31,579 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:31,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:31,580 INFO L225 Difference]: With dead ends: 140 [2020-09-17 14:16:31,580 INFO L226 Difference]: Without dead ends: 124 [2020-09-17 14:16:31,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:31,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-17 14:16:31,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 99. [2020-09-17 14:16:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-09-17 14:16:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 157 transitions. [2020-09-17 14:16:31,584 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 157 transitions. Word has length 22 [2020-09-17 14:16:31,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:31,585 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 157 transitions. [2020-09-17 14:16:31,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 157 transitions. [2020-09-17 14:16:31,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:31,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:31,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:31,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-17 14:16:31,586 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2100578423, now seen corresponding path program 11 times [2020-09-17 14:16:31,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:31,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276965681] [2020-09-17 14:16:31,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:32,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276965681] [2020-09-17 14:16:32,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:32,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:32,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321738926] [2020-09-17 14:16:32,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:32,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:32,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:32,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:32,615 INFO L87 Difference]: Start difference. First operand 99 states and 157 transitions. Second operand 14 states. [2020-09-17 14:16:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:33,630 INFO L93 Difference]: Finished difference Result 138 states and 218 transitions. [2020-09-17 14:16:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:33,631 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:33,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:33,632 INFO L225 Difference]: With dead ends: 138 [2020-09-17 14:16:33,632 INFO L226 Difference]: Without dead ends: 105 [2020-09-17 14:16:33,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:33,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-17 14:16:33,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 93. [2020-09-17 14:16:33,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-17 14:16:33,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 146 transitions. [2020-09-17 14:16:33,635 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 146 transitions. Word has length 22 [2020-09-17 14:16:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:33,636 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 146 transitions. [2020-09-17 14:16:33,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:33,636 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 146 transitions. [2020-09-17 14:16:33,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:33,636 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:33,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:33,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-17 14:16:33,637 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:33,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:33,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1068559361, now seen corresponding path program 12 times [2020-09-17 14:16:33,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:33,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031669882] [2020-09-17 14:16:33,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:34,718 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031669882] [2020-09-17 14:16:34,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:34,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:34,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454202499] [2020-09-17 14:16:34,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:34,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:34,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:34,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:34,720 INFO L87 Difference]: Start difference. First operand 93 states and 146 transitions. Second operand 14 states. [2020-09-17 14:16:35,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:35,702 INFO L93 Difference]: Finished difference Result 126 states and 193 transitions. [2020-09-17 14:16:35,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:35,703 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:35,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:35,703 INFO L225 Difference]: With dead ends: 126 [2020-09-17 14:16:35,704 INFO L226 Difference]: Without dead ends: 92 [2020-09-17 14:16:35,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:35,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-17 14:16:35,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2020-09-17 14:16:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-09-17 14:16:35,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 138 transitions. [2020-09-17 14:16:35,707 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 138 transitions. Word has length 22 [2020-09-17 14:16:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:35,708 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 138 transitions. [2020-09-17 14:16:35,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:35,708 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 138 transitions. [2020-09-17 14:16:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:35,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:35,708 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:35,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-09-17 14:16:35,708 INFO L427 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1273870831, now seen corresponding path program 13 times [2020-09-17 14:16:35,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:35,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999167537] [2020-09-17 14:16:35,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:36,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999167537] [2020-09-17 14:16:36,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:36,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:36,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935658616] [2020-09-17 14:16:36,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:36,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:36,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:36,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:36,705 INFO L87 Difference]: Start difference. First operand 89 states and 138 transitions. Second operand 14 states. [2020-09-17 14:16:37,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:37,594 INFO L93 Difference]: Finished difference Result 95 states and 143 transitions. [2020-09-17 14:16:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:37,595 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:37,596 INFO L225 Difference]: With dead ends: 95 [2020-09-17 14:16:37,596 INFO L226 Difference]: Without dead ends: 80 [2020-09-17 14:16:37,597 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:37,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-17 14:16:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-09-17 14:16:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-09-17 14:16:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 128 transitions. [2020-09-17 14:16:37,600 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 128 transitions. Word has length 22 [2020-09-17 14:16:37,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:37,600 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 128 transitions. [2020-09-17 14:16:37,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:37,600 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 128 transitions. [2020-09-17 14:16:37,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:37,600 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:37,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:37,601 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-09-17 14:16:37,601 INFO L427 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:37,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:37,601 INFO L82 PathProgramCache]: Analyzing trace with hash 341292095, now seen corresponding path program 14 times [2020-09-17 14:16:37,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:37,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598366236] [2020-09-17 14:16:37,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:38,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:38,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598366236] [2020-09-17 14:16:38,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:38,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:38,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926140759] [2020-09-17 14:16:38,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:38,641 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:38,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:38,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:38,642 INFO L87 Difference]: Start difference. First operand 80 states and 128 transitions. Second operand 14 states. [2020-09-17 14:16:39,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:39,629 INFO L93 Difference]: Finished difference Result 110 states and 172 transitions. [2020-09-17 14:16:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:39,629 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:39,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:39,630 INFO L225 Difference]: With dead ends: 110 [2020-09-17 14:16:39,630 INFO L226 Difference]: Without dead ends: 77 [2020-09-17 14:16:39,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:39,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-09-17 14:16:39,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-09-17 14:16:39,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-17 14:16:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 124 transitions. [2020-09-17 14:16:39,634 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 124 transitions. Word has length 22 [2020-09-17 14:16:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:39,634 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 124 transitions. [2020-09-17 14:16:39,634 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2020-09-17 14:16:39,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:39,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:39,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:39,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-09-17 14:16:39,635 INFO L427 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:39,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:39,636 INFO L82 PathProgramCache]: Analyzing trace with hash 2099874535, now seen corresponding path program 15 times [2020-09-17 14:16:39,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:39,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759905278] [2020-09-17 14:16:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:40,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:40,642 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759905278] [2020-09-17 14:16:40,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:40,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:40,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116306889] [2020-09-17 14:16:40,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:40,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:40,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:40,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:40,644 INFO L87 Difference]: Start difference. First operand 77 states and 124 transitions. Second operand 14 states. [2020-09-17 14:16:41,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:41,607 INFO L93 Difference]: Finished difference Result 111 states and 175 transitions. [2020-09-17 14:16:41,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:41,608 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:41,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:41,609 INFO L225 Difference]: With dead ends: 111 [2020-09-17 14:16:41,609 INFO L226 Difference]: Without dead ends: 80 [2020-09-17 14:16:41,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:41,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-09-17 14:16:41,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 79. [2020-09-17 14:16:41,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-17 14:16:41,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 127 transitions. [2020-09-17 14:16:41,612 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 127 transitions. Word has length 22 [2020-09-17 14:16:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:41,612 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 127 transitions. [2020-09-17 14:16:41,612 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 127 transitions. [2020-09-17 14:16:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:41,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:41,613 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:41,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-09-17 14:16:41,613 INFO L427 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:41,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:41,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1892841425, now seen corresponding path program 16 times [2020-09-17 14:16:41,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:41,614 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634814040] [2020-09-17 14:16:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:42,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:42,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634814040] [2020-09-17 14:16:42,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:42,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:42,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508215252] [2020-09-17 14:16:42,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:42,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:42,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:42,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:42,629 INFO L87 Difference]: Start difference. First operand 79 states and 127 transitions. Second operand 14 states. [2020-09-17 14:16:43,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:43,574 INFO L93 Difference]: Finished difference Result 128 states and 209 transitions. [2020-09-17 14:16:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:43,575 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:43,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:43,576 INFO L225 Difference]: With dead ends: 128 [2020-09-17 14:16:43,576 INFO L226 Difference]: Without dead ends: 103 [2020-09-17 14:16:43,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-17 14:16:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 87. [2020-09-17 14:16:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-17 14:16:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 141 transitions. [2020-09-17 14:16:43,580 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 141 transitions. Word has length 22 [2020-09-17 14:16:43,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:43,580 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 141 transitions. [2020-09-17 14:16:43,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:43,581 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 141 transitions. [2020-09-17 14:16:43,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:43,581 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:43,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:43,581 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-09-17 14:16:43,582 INFO L427 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:43,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:43,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1938797679, now seen corresponding path program 17 times [2020-09-17 14:16:43,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:43,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645044408] [2020-09-17 14:16:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:44,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645044408] [2020-09-17 14:16:44,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:44,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:44,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600213316] [2020-09-17 14:16:44,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:44,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:44,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:44,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:44,567 INFO L87 Difference]: Start difference. First operand 87 states and 141 transitions. Second operand 14 states. [2020-09-17 14:16:45,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:45,629 INFO L93 Difference]: Finished difference Result 134 states and 212 transitions. [2020-09-17 14:16:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-17 14:16:45,630 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:45,631 INFO L225 Difference]: With dead ends: 134 [2020-09-17 14:16:45,632 INFO L226 Difference]: Without dead ends: 117 [2020-09-17 14:16:45,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:16:45,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-09-17 14:16:45,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 91. [2020-09-17 14:16:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-09-17 14:16:45,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 147 transitions. [2020-09-17 14:16:45,636 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 147 transitions. Word has length 22 [2020-09-17 14:16:45,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:45,636 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 147 transitions. [2020-09-17 14:16:45,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 147 transitions. [2020-09-17 14:16:45,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:45,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:45,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:45,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-09-17 14:16:45,638 INFO L427 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:45,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1408809297, now seen corresponding path program 18 times [2020-09-17 14:16:45,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:45,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000438182] [2020-09-17 14:16:45,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:46,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000438182] [2020-09-17 14:16:46,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:46,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:46,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415917427] [2020-09-17 14:16:46,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:46,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:46,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:46,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:46,626 INFO L87 Difference]: Start difference. First operand 91 states and 147 transitions. Second operand 14 states. [2020-09-17 14:16:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:47,531 INFO L93 Difference]: Finished difference Result 126 states and 196 transitions. [2020-09-17 14:16:47,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:47,532 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:47,533 INFO L225 Difference]: With dead ends: 126 [2020-09-17 14:16:47,533 INFO L226 Difference]: Without dead ends: 107 [2020-09-17 14:16:47,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-09-17 14:16:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2020-09-17 14:16:47,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-17 14:16:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 133 transitions. [2020-09-17 14:16:47,537 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 133 transitions. Word has length 22 [2020-09-17 14:16:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:47,537 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 133 transitions. [2020-09-17 14:16:47,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 133 transitions. [2020-09-17 14:16:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:47,538 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:47,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:47,538 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-09-17 14:16:47,538 INFO L427 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:47,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1825202627, now seen corresponding path program 19 times [2020-09-17 14:16:47,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:47,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881956337] [2020-09-17 14:16:47,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:48,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:48,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881956337] [2020-09-17 14:16:48,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:48,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:48,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879784886] [2020-09-17 14:16:48,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:48,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:48,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:48,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:48,569 INFO L87 Difference]: Start difference. First operand 83 states and 133 transitions. Second operand 14 states. [2020-09-17 14:16:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:49,501 INFO L93 Difference]: Finished difference Result 123 states and 196 transitions. [2020-09-17 14:16:49,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:49,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:49,503 INFO L225 Difference]: With dead ends: 123 [2020-09-17 14:16:49,503 INFO L226 Difference]: Without dead ends: 87 [2020-09-17 14:16:49,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-09-17 14:16:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 77. [2020-09-17 14:16:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-09-17 14:16:49,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 122 transitions. [2020-09-17 14:16:49,507 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 122 transitions. Word has length 22 [2020-09-17 14:16:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:49,507 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 122 transitions. [2020-09-17 14:16:49,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 122 transitions. [2020-09-17 14:16:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:49,508 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:49,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:49,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-09-17 14:16:49,508 INFO L427 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:49,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:49,509 INFO L82 PathProgramCache]: Analyzing trace with hash -699373115, now seen corresponding path program 20 times [2020-09-17 14:16:49,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:49,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044051794] [2020-09-17 14:16:49,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:50,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044051794] [2020-09-17 14:16:50,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:50,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:50,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504928812] [2020-09-17 14:16:50,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:50,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:50,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:50,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:50,575 INFO L87 Difference]: Start difference. First operand 77 states and 122 transitions. Second operand 14 states. [2020-09-17 14:16:51,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:51,548 INFO L93 Difference]: Finished difference Result 108 states and 168 transitions. [2020-09-17 14:16:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:51,549 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:51,549 INFO L225 Difference]: With dead ends: 108 [2020-09-17 14:16:51,550 INFO L226 Difference]: Without dead ends: 62 [2020-09-17 14:16:51,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:51,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-17 14:16:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-17 14:16:51,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-17 14:16:51,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 98 transitions. [2020-09-17 14:16:51,553 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 98 transitions. Word has length 22 [2020-09-17 14:16:51,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:51,553 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 98 transitions. [2020-09-17 14:16:51,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:51,553 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2020-09-17 14:16:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:51,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:51,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:51,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-09-17 14:16:51,554 INFO L427 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:51,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:51,554 INFO L82 PathProgramCache]: Analyzing trace with hash -675636301, now seen corresponding path program 21 times [2020-09-17 14:16:51,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:51,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268550829] [2020-09-17 14:16:51,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:52,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268550829] [2020-09-17 14:16:52,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:52,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:52,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225979317] [2020-09-17 14:16:52,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:52,548 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:52,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:52,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:52,548 INFO L87 Difference]: Start difference. First operand 62 states and 98 transitions. Second operand 14 states. [2020-09-17 14:16:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:53,442 INFO L93 Difference]: Finished difference Result 92 states and 143 transitions. [2020-09-17 14:16:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:53,443 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:53,444 INFO L225 Difference]: With dead ends: 92 [2020-09-17 14:16:53,444 INFO L226 Difference]: Without dead ends: 61 [2020-09-17 14:16:53,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:53,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-17 14:16:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-09-17 14:16:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-17 14:16:53,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 96 transitions. [2020-09-17 14:16:53,447 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 96 transitions. Word has length 22 [2020-09-17 14:16:53,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:53,448 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 96 transitions. [2020-09-17 14:16:53,448 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:53,448 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 96 transitions. [2020-09-17 14:16:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:53,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:53,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:53,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-09-17 14:16:53,449 INFO L427 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:53,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:53,449 INFO L82 PathProgramCache]: Analyzing trace with hash -882669411, now seen corresponding path program 22 times [2020-09-17 14:16:53,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:53,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950415306] [2020-09-17 14:16:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:54,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950415306] [2020-09-17 14:16:54,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:54,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:54,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258688833] [2020-09-17 14:16:54,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:54,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:54,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:54,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:54,463 INFO L87 Difference]: Start difference. First operand 61 states and 96 transitions. Second operand 14 states. [2020-09-17 14:16:55,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:55,396 INFO L93 Difference]: Finished difference Result 109 states and 177 transitions. [2020-09-17 14:16:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:16:55,397 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:55,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:55,398 INFO L225 Difference]: With dead ends: 109 [2020-09-17 14:16:55,398 INFO L226 Difference]: Without dead ends: 84 [2020-09-17 14:16:55,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-09-17 14:16:55,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69. [2020-09-17 14:16:55,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-17 14:16:55,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 110 transitions. [2020-09-17 14:16:55,401 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 110 transitions. Word has length 22 [2020-09-17 14:16:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:55,401 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 110 transitions. [2020-09-17 14:16:55,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 110 transitions. [2020-09-17 14:16:55,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:55,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:55,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:55,402 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-09-17 14:16:55,402 INFO L427 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:55,403 INFO L82 PathProgramCache]: Analyzing trace with hash -419341219, now seen corresponding path program 23 times [2020-09-17 14:16:55,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:55,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230542224] [2020-09-17 14:16:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:56,446 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230542224] [2020-09-17 14:16:56,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:56,447 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:56,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472886702] [2020-09-17 14:16:56,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:56,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:56,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:56,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:56,448 INFO L87 Difference]: Start difference. First operand 69 states and 110 transitions. Second operand 14 states. [2020-09-17 14:16:57,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:57,439 INFO L93 Difference]: Finished difference Result 115 states and 180 transitions. [2020-09-17 14:16:57,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-17 14:16:57,440 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:57,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:57,441 INFO L225 Difference]: With dead ends: 115 [2020-09-17 14:16:57,441 INFO L226 Difference]: Without dead ends: 98 [2020-09-17 14:16:57,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:16:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-17 14:16:57,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73. [2020-09-17 14:16:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-17 14:16:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 116 transitions. [2020-09-17 14:16:57,444 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 116 transitions. Word has length 22 [2020-09-17 14:16:57,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:57,444 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 116 transitions. [2020-09-17 14:16:57,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 116 transitions. [2020-09-17 14:16:57,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:57,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:57,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:57,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-09-17 14:16:57,445 INFO L427 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:57,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:57,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1366701539, now seen corresponding path program 24 times [2020-09-17 14:16:57,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:57,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652022018] [2020-09-17 14:16:57,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:16:58,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:16:58,403 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652022018] [2020-09-17 14:16:58,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:16:58,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:16:58,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452623027] [2020-09-17 14:16:58,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:16:58,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:16:58,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:16:58,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:16:58,405 INFO L87 Difference]: Start difference. First operand 73 states and 116 transitions. Second operand 14 states. [2020-09-17 14:16:59,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:16:59,273 INFO L93 Difference]: Finished difference Result 107 states and 164 transitions. [2020-09-17 14:16:59,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:16:59,273 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:16:59,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:16:59,274 INFO L225 Difference]: With dead ends: 107 [2020-09-17 14:16:59,274 INFO L226 Difference]: Without dead ends: 88 [2020-09-17 14:16:59,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:16:59,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-17 14:16:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2020-09-17 14:16:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-09-17 14:16:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 102 transitions. [2020-09-17 14:16:59,277 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 102 transitions. Word has length 22 [2020-09-17 14:16:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:16:59,277 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 102 transitions. [2020-09-17 14:16:59,277 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:16:59,278 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 102 transitions. [2020-09-17 14:16:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:16:59,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:16:59,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:16:59,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-09-17 14:16:59,279 INFO L427 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:16:59,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:16:59,279 INFO L82 PathProgramCache]: Analyzing trace with hash -305746167, now seen corresponding path program 25 times [2020-09-17 14:16:59,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:16:59,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022930411] [2020-09-17 14:16:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:16:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:17:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:17:00,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022930411] [2020-09-17 14:17:00,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:17:00,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:17:00,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132092281] [2020-09-17 14:17:00,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:17:00,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:17:00,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:17:00,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:17:00,277 INFO L87 Difference]: Start difference. First operand 65 states and 102 transitions. Second operand 14 states. [2020-09-17 14:17:01,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:17:01,157 INFO L93 Difference]: Finished difference Result 95 states and 147 transitions. [2020-09-17 14:17:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:17:01,158 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:17:01,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:17:01,158 INFO L225 Difference]: With dead ends: 95 [2020-09-17 14:17:01,159 INFO L226 Difference]: Without dead ends: 59 [2020-09-17 14:17:01,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:17:01,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-09-17 14:17:01,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-09-17 14:17:01,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-17 14:17:01,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 92 transitions. [2020-09-17 14:17:01,162 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 92 transitions. Word has length 22 [2020-09-17 14:17:01,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:17:01,162 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 92 transitions. [2020-09-17 14:17:01,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:17:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 92 transitions. [2020-09-17 14:17:01,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:17:01,163 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:17:01,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:17:01,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-09-17 14:17:01,163 INFO L427 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:17:01,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:17:01,164 INFO L82 PathProgramCache]: Analyzing trace with hash -2008695741, now seen corresponding path program 26 times [2020-09-17 14:17:01,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:17:01,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607538874] [2020-09-17 14:17:01,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:17:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:17:02,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:17:02,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607538874] [2020-09-17 14:17:02,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:17:02,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:17:02,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723995213] [2020-09-17 14:17:02,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:17:02,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:17:02,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:17:02,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:17:02,205 INFO L87 Difference]: Start difference. First operand 59 states and 92 transitions. Second operand 14 states. [2020-09-17 14:17:03,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:17:03,232 INFO L93 Difference]: Finished difference Result 88 states and 136 transitions. [2020-09-17 14:17:03,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:17:03,233 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:17:03,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:17:03,234 INFO L225 Difference]: With dead ends: 88 [2020-09-17 14:17:03,234 INFO L226 Difference]: Without dead ends: 63 [2020-09-17 14:17:03,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:17:03,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-17 14:17:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-09-17 14:17:03,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-17 14:17:03,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2020-09-17 14:17:03,236 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 90 transitions. Word has length 22 [2020-09-17 14:17:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:17:03,236 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 90 transitions. [2020-09-17 14:17:03,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:17:03,237 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 90 transitions. [2020-09-17 14:17:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:17:03,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:17:03,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:17:03,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-09-17 14:17:03,237 INFO L427 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:17:03,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:17:03,237 INFO L82 PathProgramCache]: Analyzing trace with hash 287585121, now seen corresponding path program 27 times [2020-09-17 14:17:03,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:17:03,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609801929] [2020-09-17 14:17:03,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:17:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:17:04,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:17:04,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609801929] [2020-09-17 14:17:04,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:17:04,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:17:04,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67490716] [2020-09-17 14:17:04,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:17:04,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:17:04,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:17:04,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:17:04,433 INFO L87 Difference]: Start difference. First operand 59 states and 90 transitions. Second operand 14 states. [2020-09-17 14:17:05,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:17:05,529 INFO L93 Difference]: Finished difference Result 85 states and 125 transitions. [2020-09-17 14:17:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-17 14:17:05,530 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:17:05,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:17:05,531 INFO L225 Difference]: With dead ends: 85 [2020-09-17 14:17:05,531 INFO L226 Difference]: Without dead ends: 68 [2020-09-17 14:17:05,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2020-09-17 14:17:05,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-17 14:17:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 59. [2020-09-17 14:17:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-17 14:17:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 88 transitions. [2020-09-17 14:17:05,533 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 88 transitions. Word has length 22 [2020-09-17 14:17:05,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:17:05,533 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 88 transitions. [2020-09-17 14:17:05,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:17:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 88 transitions. [2020-09-17 14:17:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:17:05,535 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:17:05,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:17:05,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-09-17 14:17:05,537 INFO L427 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:17:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:17:05,537 INFO L82 PathProgramCache]: Analyzing trace with hash -659775199, now seen corresponding path program 28 times [2020-09-17 14:17:05,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:17:05,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863840492] [2020-09-17 14:17:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:17:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:17:06,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:17:06,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863840492] [2020-09-17 14:17:06,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:17:06,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:17:06,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3930195] [2020-09-17 14:17:06,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:17:06,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:17:06,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:17:06,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:17:06,597 INFO L87 Difference]: Start difference. First operand 59 states and 88 transitions. Second operand 14 states. [2020-09-17 14:17:07,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:17:07,512 INFO L93 Difference]: Finished difference Result 77 states and 109 transitions. [2020-09-17 14:17:07,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-17 14:17:07,513 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:17:07,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:17:07,514 INFO L225 Difference]: With dead ends: 77 [2020-09-17 14:17:07,514 INFO L226 Difference]: Without dead ends: 58 [2020-09-17 14:17:07,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:17:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-17 14:17:07,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 49. [2020-09-17 14:17:07,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-17 14:17:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 72 transitions. [2020-09-17 14:17:07,516 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 72 transitions. Word has length 22 [2020-09-17 14:17:07,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:17:07,516 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 72 transitions. [2020-09-17 14:17:07,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:17:07,517 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2020-09-17 14:17:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-09-17 14:17:07,517 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 14:17:07,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 14:17:07,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-09-17 14:17:07,517 INFO L427 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 14:17:07,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 14:17:07,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1650897763, now seen corresponding path program 29 times [2020-09-17 14:17:07,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 14:17:07,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049199597] [2020-09-17 14:17:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 14:17:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 14:17:08,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 14:17:08,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049199597] [2020-09-17 14:17:08,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 14:17:08,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-17 14:17:08,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242712064] [2020-09-17 14:17:08,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-17 14:17:08,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 14:17:08,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-17 14:17:08,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-17 14:17:08,510 INFO L87 Difference]: Start difference. First operand 49 states and 72 transitions. Second operand 14 states. [2020-09-17 14:17:09,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 14:17:09,335 INFO L93 Difference]: Finished difference Result 48 states and 71 transitions. [2020-09-17 14:17:09,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-17 14:17:09,335 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 22 [2020-09-17 14:17:09,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 14:17:09,336 INFO L225 Difference]: With dead ends: 48 [2020-09-17 14:17:09,336 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 14:17:09,337 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 0 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2020-09-17 14:17:09,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 14:17:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 14:17:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 14:17:09,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 14:17:09,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-09-17 14:17:09,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 14:17:09,338 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 14:17:09,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-17 14:17:09,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 14:17:09,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 14:17:09,338 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-09-17 14:17:09,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 02:17:09 BasicIcfg [2020-09-17 14:17:09,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 14:17:09,345 INFO L168 Benchmark]: Toolchain (without parser) took 77081.67 ms. Allocated memory was 141.0 MB in the beginning and 652.7 MB in the end (delta: 511.7 MB). Free memory was 99.8 MB in the beginning and 562.4 MB in the end (delta: -462.6 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,345 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1485.33 ms. Allocated memory was 141.0 MB in the beginning and 241.7 MB in the end (delta: 100.7 MB). Free memory was 99.1 MB in the beginning and 172.8 MB in the end (delta: -73.7 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.20 ms. Allocated memory is still 241.7 MB. Free memory was 172.8 MB in the beginning and 169.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,346 INFO L168 Benchmark]: Boogie Preprocessor took 55.20 ms. Allocated memory is still 241.7 MB. Free memory was 169.9 MB in the beginning and 166.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,347 INFO L168 Benchmark]: RCFGBuilder took 788.57 ms. Allocated memory is still 241.7 MB. Free memory was 166.9 MB in the beginning and 119.0 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. [2020-09-17 14:17:09,347 INFO L168 Benchmark]: TraceAbstraction took 74661.36 ms. Allocated memory was 241.7 MB in the beginning and 652.7 MB in the end (delta: 411.0 MB). Free memory was 119.0 MB in the beginning and 562.4 MB in the end (delta: -443.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 14:17:09,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1485.33 ms. Allocated memory was 141.0 MB in the beginning and 241.7 MB in the end (delta: 100.7 MB). Free memory was 99.1 MB in the beginning and 172.8 MB in the end (delta: -73.7 MB). Peak memory consumption was 74.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 82.20 ms. Allocated memory is still 241.7 MB. Free memory was 172.8 MB in the beginning and 169.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.20 ms. Allocated memory is still 241.7 MB. Free memory was 169.9 MB in the beginning and 166.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 788.57 ms. Allocated memory is still 241.7 MB. Free memory was 166.9 MB in the beginning and 119.0 MB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 74661.36 ms. Allocated memory was 241.7 MB in the beginning and 652.7 MB in the end (delta: 411.0 MB). Free memory was 119.0 MB in the beginning and 562.4 MB in the end (delta: -443.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 8.7s, 151 ProgramPointsBefore, 41 ProgramPointsAfterwards, 155 TransitionsBefore, 40 TransitionsAfterwards, 2884 CoEnabledTransitionPairs, 8 FixpointIterations, 87 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 17 ConcurrentYvCompositions, 5 ChoiceCompositions, 1453 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 5170 CheckedPairsTotal, 162 TotalNumberOfCompositions - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 74.4s, OverallIterations: 41, TraceHistogramMax: 1, AutomataDifference: 31.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, HoareTripleCheckerStatistics: 872 SDtfs, 1670 SDslu, 4159 SDs, 0 SdLazy, 10710 SolverSat, 860 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 751 GetRequests, 25 SyntacticMatches, 72 SemanticMatches, 654 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1344 ImplicationChecksByTransitivity, 37.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 41 MinimizatonAttempts, 574 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 31.5s InterpolantComputationTime, 835 NumberOfCodeBlocks, 835 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 794 ConstructedInterpolants, 0 QuantifiedInterpolants, 396592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...